/*****************************************************
参数说明:
max_file_size : 上传文件大小限制, 单位BYTE
destination_folder : 上传文件路径
watermark : 是否附加水印(1为加水印,其他为不加水印);
使用说明:
1. 将PHP.INI文件里面的"extension=php_gd2.dll"一行前面的;号去掉,因为我们要用到GD库;
2. 将extension_dir =改为你的php_gd2.dll所在目录;
****************************************************/
//上传文件类型列表
uptypes=array(
'image/jpg',
'image/jpeg',
'image/png',
'image/pjpeg',
'image/gif',
'image/bmp',
'image/x-png'
);
max_file_size=2000000; //上传文件大小限制, 单位BYTE
destination_folder="uploadimg/"; //上传文件路径
watermark=1; //是否附加水印(1为加水印,其他为不加水印);
watertype=1; //水印类型(1为文字,2为图片)
waterposition=1; //水印位置(1为左下角,2为右下角,3为左上角,4为右上角,5为居中);
waterstring=; //水印字符串
waterimg="xplore.gif"; //水印图片
imgpreview=1; //是否生成预览图(1为生成,其他为不生成);
imgpreviewsize=1/2; //缩略图比例
?>







上传文件:



允许上传的文件类型为:

if (_SERVER['REQUEST_METHOD'] == 'POST')
{
if (!is_uploaded_file(_FILES["upfile"][tmp_name]))
//是否存在文件
{
echo "图片不存在!";
exit;
}
file = _FILES["upfile"];
if(max_file_size < file["size"])
//检查文件大小
{
echo "文件太大!";
exit;
}
if(!in_array(file["type"], uptypes))
//检查文件类型
{
echo "文件类型不符!".file["type"];
exit;
}
if(!file_exists(destination_folder))
{
mkdir(destination_folder);
}
filename=file["tmp_name"];
image_size = getimagesize(filename);
pinfo=pathinfo(file["name"]);
ftype=pinfo['extension'];
destination = destination_folder.time().".".ftype;
if (file_exists(destination) && overwrite != true)
{
echo "同名文件已经存在了";
exit;
}
if(!move_uploaded_file (filename, destination))
{
echo "移动文件出错";
exit;
}
pinfo=pathinfo(destination);
fname=pinfo[basename];
echo " 已经成功上传
文件名: ".destination_folder.fname."
";
echo " 宽度:".image_size[0];
echo " 长度:".image_size[1];
echo "
大小:".file["size"]." bytes";
if(watermark==1)
{
iinfo=getimagesize(destination,iinfo);
nimage=imagecreatetruecolor(image_size[0],image_size[1]);
white=imagecolorallocate(nimage,255,255,255);
black=imagecolorallocate(nimage,0,0,0);
red=imagecolorallocate(nimage,255,0,0);
imagefill(nimage,0,0,white);
switch (iinfo[2])
{
case 1:
simage =imagecreatefromgif(destination);
break;
case 2:
simage =imagecreatefromjpeg(destination);
break;
case 3:
simage =imagecreatefrompng(destination);
break;
case 6:
simage =imagecreatefromwbmp(destination);
break;
default:
die("不支持的文件类型");
exit;
}
imagecopy(nimage,simage,0,0,0,0,image_size[0],image_size[1]);
imagefilledrectangle(nimage,1,image_size[1]-15,80,image_size[1],white);
switch(watertype)
{
case 1: //加水印字符串
imagestring(nimage,2,3,image_size[1]-15,waterstring,black);
break;
case 2: //加水印图片
simage1 =imagecreatefromgif("xplore.gif");
imagecopy(nimage,simage1,0,0,0,0,85,15);
imagedestroy(simage1);
break;
}
switch (iinfo[2])
{
case 1:
//imagegif(nimage, destination);
imagejpeg(nimage, destination);
break;
case 2:
imagejpeg(nimage, destination);
break;
case 3:
imagepng(nimage, destination);
break;
case 6:
imagewbmp(nimage, destination);
//imagejpeg(nimage, destination);
break;
}
//覆盖原上传文件
imagedestroy(nimage);
imagedestroy(simage);
}
if(imgpreview==1)
{
echo "
图片预览:
";
echo "";
}
}
?>